passing data to a custom action

RE: passing data to a custom action


while waiting for help I've tried once more...

here is my example of the code.

any comments on the code appreciates.

public override void Install (System.Collect ions.IDictionar y stateSaver)
{
//Get the parameter passed across in the CustomActionDat a
string strServerName = this.Context.Pa rameters["SNAME"];
string strDatabaseName = this.Context.Pa rameters["DBNAME"];

if(strServerNam e == "" || strDatabaseName == "")
throw new InstallExceptio n ("No arguments specified");

//Use reflection to find the location of the config file
Assembly Asm = Assembly.GetExe cutingAssembly( );
FileInfo fileInfo = new FileInfo(Asm.Lo cation + ".config");

if (!fileInfo.Exis ts)
throw new InstallExceptio n ("Missing Config file");


//Load the config file into the XML DOM.
XmlDocument xmlDocument = new XmlDocument();
xmlDocument.Loa d (fileInfo.FullN ame);

//Finds the right node and change it to the new value
XmlNodeList nodelist = xmlDocument.Get ElementsByTagNa me ("appSettings") ;

bool foundServerName = false;
bool foundDataBaseNa me = false;

for (int i = 0; i < nodelist.Count; i++)
{
int y = 0;
XmlNode n = nodelist[i].FirstChild;
while (y < nodelist[i].ChildNodes.Cou nt)
{
if(n.Name == "add")
{
if (n.Attributes["key"].Value == "SNAME")
{
n.Attributes["value"].Value = strServerName;
foundServerName = true;
}
else if (n.Attributes["key"].Value == "DBNAME")
{
n.Attributes["value"].Value = strDatabaseName ;
foundDataBaseNa me = true;
}
}
n = n.NextSibling;
y++;
}
}

if(!foundDataBa seName || !foundServerNam e)
throw new InstallExceptio n ("config file did not contain a servername or a
databasename section");

//Write out the new config file.
xmlDocument.Sav e (fileInfo.FullN ame);
}


best regards

Hans

Re: passing data to a custom action

Hans,

It's always helpful if you explain exactly what the problem is. What error
you are getting on what line.

I'm guessing you're having problem with the Item properties. Usually those
become indexers in C#, so offhand:

foreach (XmlNode node in xmlDocument["configurat ion"]["appSetting s"])

Double check the docs to make sure. You'll see that the Item property of
the XmlDocument has the notation, "In C#, this property is the indexer for
the XmlDocument class".

Also watch out for case sensitivity issues.

That's the best guess I can give you.

--Bob

"Hans [DiaGraphIT]" <hans.arsjo@ssh f.no> wrote in message
news:1B352A71-25EA-41E4-A8BA-0B67DCCA145C@mi crosoft.com...[color=blue]
> Hi!
>
> Can anyone help me with translating a VB-code to C#?
>
> I'm reading the walkthrough: Passing data to a custom action.
> In part 4 were you create an installer class there is a example of
> VB-code.
>
> I've tried to translate the code to c# but I have problem with a small
> part
> of it ...
>
>
> ' Finds the right node and change it to the new value.
> Dim Node As System.Xml.XmlN ode
> Dim FoundIt As Boolean = False
> For Each Node In XmlDocument.Ite m("configuratio n").Item("appSe ttings")
> If Node.Name = "add" Then ' skip any comments
> If Node.Attributes .GetNamedItem(" key").Value = "ServerName " Then
> Node.Attributes .GetNamedItem(" value").Value = ProvidedName
> FoundIt = True
> End If
> End If
> Next Node
>
>
> please help!
>
> ---------------
> Best regards
> - Hans -
> ---------------
> (Have fun programming with ... C#)[/color]

Re: passing data to a custom action

Your not a bad guesser... :-)

thank you very much.

Hans





"Bob Grommes" wrote:
[color=blue]
> Hans,
>
> It's always helpful if you explain exactly what the problem is. What error
> you are getting on what line.
>
> I'm guessing you're having problem with the Item properties. Usually those
> become indexers in C#, so offhand:
>
> foreach (XmlNode node in xmlDocument["configurat ion"]["appSetting s"])
>
> Double check the docs to make sure. You'll see that the Item property of
> the XmlDocument has the notation, "In C#, this property is the indexer for
> the XmlDocument class".
>
> Also watch out for case sensitivity issues.
>
> That's the best guess I can give you.
>
> --Bob
>
> "Hans [DiaGraphIT]" <hans.arsjo@ssh f.no> wrote in message
> news:1B352A71-25EA-41E4-A8BA-0B67DCCA145C@mi crosoft.com...[color=green]
> > Hi!
> >
> > Can anyone help me with translating a VB-code to C#?
> >
> > I'm reading the walkthrough: Passing data to a custom action.
> > In part 4 were you create an installer class there is a example of
> > VB-code.
> >
> > I've tried to translate the code to c# but I have problem with a small
> > part
> > of it ...
> >
> >
> > ' Finds the right node and change it to the new value.
> > Dim Node As System.Xml.XmlN ode
> > Dim FoundIt As Boolean = False
> > For Each Node In XmlDocument.Ite m("configuratio n").Item("appSe ttings")
> > If Node.Name = "add" Then ' skip any comments
> > If Node.Attributes .GetNamedItem(" key").Value = "ServerName " Then
> > Node.Attributes .GetNamedItem(" value").Value = ProvidedName
> > FoundIt = True
> > End If
> > End If
> > Next Node
> >
> >
> > please help!
> >
> > ---------------
> > Best regards
> > - Hans -
> > ---------------
> > (Have fun programming with ... C#)[/color]
>
>
>[/color]